Control of puff profile
AssigneeBritish American Tobacco (Investments) Limited
InventorsDominic Woodcock, James Murphy
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Abstract
The invention relates to heat not burn products comprising an encapsulated aerosol generating agent, the encapsulation having the effect of controlling the release of the agent during use of the heat not burn product. The encapsulation will control the timing of the release of the aerosol generating agent during the use of the heat not burn product, to allow greater control of the puff yield. In the case of some aerosol generating agents, the encapsulation may also increase the stability of the agent and/or prevent its migration within the product.
Claims20
A heat not burn product comprising an encapsulated aerosol generating agent, wherein release of the aerosol generating agent during use is controlled using different encapsulation materials or different encapsulation approaches to produce a desired puff yield of total particulate matter, the aerosol generating agent being encapsulated using at least two different barrier materials, the at least two different barrier materials having different melting points, the aerosol generating agent being carried by a particulate carrier material, and the at least two different barrier materials being applied to the particulate carrier material carrying the aerosol generating agent.
A method for controlling the release of an aerosol generating agent in a heat not burn product, so as to produce a desired puff yield of total particulate matter, comprising:
- encapsulating an aerosol generating agent using different encapsulation materials or different encapsulation approaches, and at least two different barrier materials, the at least two different barrier materials having different melting points, the aerosol generating agent being carried by a particulate carrier material;
- and
- applying the at least two different barrier materials to the particulate carrier material carrying the aerosol generating agent.
Dependencies are inferred from the claim text.